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Ray Of Light [21]
3 years ago
13

Most paper does not reflect light very well because its surface is somewhat rough. T or F

Physics
2 answers:
labwork [276]3 years ago
7 0

Answer:

True

Explanation:

There are two types of reflection.

From the rough surface the diffused reflection takes place.

According to diffused reflection, when  parallel beam of light falls on a rough surface, then after reflection they bounce back in different directions, so it means they do not reflect light properly.

Sloan [31]3 years ago
3 0
I think the correct answer is true. Most paper does not reflect light very well because its surface is somewhat rough. Light only reflects to surfaces which has a smooth texture or have a uniform texture on the surface. Hope this answers the question. Have a nice day.
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Nana76 [90]

Answer:

Solon,

total mass (kg)= 100kg

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acceleration due to gravity = 9.8m/s²

so,

work done =m*g*h

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5 0
3 years ago
Francium-223 has a half-life of 22 minutes. A Geiger counter gives a reading of 58 counts per minute (cpm) from a sample of fran
polet [3.4K]

Answer:

29 counts per minute (29 cpm)

Explanation:

The half-life of a radioactive isotope is the time needed for the activity of the sample to halve.The half-life of Francium-223 is exactly 22 minutes: this means that its activity after 22 minutes becomes exactly half of its initial value. Since the initial activity of this sample of francium-223 was 58 cpm, the activity after 22 minutes will be

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What is the magnitude of force required to accelerate a car of mass 1.7 * 10 ^ 3 kg by 4.75 m/s
Gnesinka [82]

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Answer:

F = 8.075 N

Explanation:

Formula for force is;

F = ma

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F = 1.7 × 10³ × 4.75

F = 8.075 N

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